The earlier we take action to protect our environment, the ________ it will be for our future.
better
best
worse
worst
Trees can prevent the wind _____ towards the rich farmland in the south. A. moves B. to move C. from moving
—Noise is _____to human’s health. —Yes, we shouldn’t talk loudly in public. A. harmful B. harm C. harmless
— Would you please tell us _____? —In half an hour, I think. A. when will he come back B. when he will come back C. when he came back
—Mrs White always helps others _____ she is very busy. —She is so kind. A. but B. because C. although
—The population of the world ____ still ____ now. —So it is. A. are; growing B. will; grow C. is; growing